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Finding the Third Proportional to 56,500 and 125,390

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Solution

The third proportional to 56,500 and 125,390 is: 278,277.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,500 : 125,390 = 125,390 : x
  2. Step 2: Convert to fraction form
    56,500/125,390 = 125,390/x
  3. Step 3: Cross multiply
    56,500x = 125,390 × 125,390
  4. Step 4: Simplify right side
    56,500x = 15,722,652,100
  5. Step 5: Solve for x
    x = 15,722,652,100/56,500
  6. Step 6: Final answer
    x = 278,277.03

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.